CheatCodes.com has all the official Choro Q Marine Q Boat PSX cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Thursday May 23, 2013 for Choro Q Marine Q Boat are shown below.
At the track selection screen, select "Free Run" mode, then press Up(2), Down, Up, X.
Complete all the missions, finish in first place on all tracks, and collect all stone signs from the tracks. Then, the "????" selection on the options screen will turn into "Extra mode". Use this option to access a "Death Fight" feature and the bonus Marinoid Bay track.
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